Hey guys, So as of right now I have a 10 gallon tank that is a little overstocked and I am sick of performing water changes every other day to keep my fish healthy. I purchased a 20 gallon long from someone on the Facebook marketplace and I resealed the tank with 100% silicone. Pretty soon I want to move my fish into that tank but I have a few questions. So is it safe to immediately move them into the new tank if I put in all of the water and substrate into the new tank, plus add the rest of the substrate into the 20 gallon that was not used for the 10 gallon? Or will it go into a mini cycle. I would be putting in the same filter I have right now witch is an AquaClear 30. Also, would you guys reccomend to add a sponge filter along with the HOB to have that extra filtration? Any help would be great!